UV is studied in strength from stars like our sun. they use this to tell how old the other star is and how far it is from death
no such thing as "ultra"
Astronomers and physicists.
Pulsars are studied by astronomers.
Astronomers study astronomy.
The ultra violent rays bounce off of your bones and a computer prints out a picture of what your insides look like. By bouncing off of the bones the ultra violent rays can show all the solid things in you.
Ultra violet radiation or UV rays are harmful. Ozone protects us from it.
Mahatma Gandhi
Astronomers know because they have studied star patterns and placements and know when there has been a change between where there is a black hole and where there isn't one.
they studied the heavenly bodies,mapped the stars,the planets,and the phases of the moon.
UV-A is an abbreviation for ultra-violent rays. Ultra-violent rays can cause melanin cell reproduction, which causes tanning. It also can cause severe skin damage if the body's skin is exposed for too long.
skin cancer, burn, and vision damage
Itchy and Scratchy an ultra violent parody of Tom and Jerry.